syntax = "proto3";

package hyapp.events.room.v1;

option go_package = "hyapp/api/proto/events/room/v1;roomeventsv1";

// EventEnvelope 是 room-service outbox 的统一事件外壳。
// body 保存具体事件消息序列化后的二进制，event_type 负责告诉消费者如何解码。
message EventEnvelope {
  string event_id = 1;
  string room_id = 2;
  string event_type = 3;
  int64 room_version = 4;
  int64 occurred_at_ms = 5;
  bytes body = 6;
}

// RoomCreated 表达房间第一次建立成功。
message RoomCreated {
  int64 owner_user_id = 1;
  int64 host_user_id = 2;
  int32 seat_count = 3;
  string mode = 4;
}

// RoomUserJoined 表达用户业务态进房成功。
message RoomUserJoined {
  int64 user_id = 1;
  string role = 2;
}

// RoomUserLeft 表达用户离房成功。
message RoomUserLeft {
  int64 user_id = 1;
}

// RoomMicChanged 表达任意上下麦和换麦位动作。
message RoomMicChanged {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
  int32 from_seat = 3;
  int32 to_seat = 4;
  string action = 5;
}

// RoomUserMuted 表达禁言状态变更。
message RoomUserMuted {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
  bool muted = 3;
}

// RoomUserKicked 表达踢人动作。
message RoomUserKicked {
  int64 actor_user_id = 1;
  int64 target_user_id = 2;
}

// RoomGiftSent 表达送礼成功且已落房间状态。
message RoomGiftSent {
  int64 sender_user_id = 1;
  int64 target_user_id = 2;
  string gift_id = 3;
  int32 gift_count = 4;
  int64 gift_value = 5;
  string billing_receipt_id = 6;
}

// RoomHeatChanged 表达热度变化结果。
message RoomHeatChanged {
  int64 delta = 1;
  int64 current_heat = 2;
}

// RoomRankChanged 表达本地礼物榜变化结果。
message RoomRankChanged {
  int64 user_id = 1;
  int64 score = 2;
  int64 gift_value = 3;
}